<template>
	<view>
		<!-- 遮罩蒙层 -->
		<view v-show="isShow" @click="showHandler" class="mask" @touchmove.stop.prevent="() => {}"></view>
		<view v-show="isShow" class="share-body">
			<scroll-view scroll-x class="share-scroll noScorll">
				<view class="share-item" @click="share(item)" v-for="(item, index) in providerList" :key="index">
					<image :src="item.icon"></image>
					<view>{{ item.name }}</view>
				</view>
			</scroll-view>

			<view class="share-cancel" @click="showHandler">取消</view>
		</view>
	</view>
</template>

<script>
export default {
	props: {
		shareData: Object // 分享的数据
	},

	watch: {
		shareData(newVal) {
			if (newVal.mainImage) this.image = newVal.mainImage;
			if (newVal.title) this.title = newVal.title;
			this.href = this.$env.HOST_H5 + this.$util.routePath();
		}
	},

	data() {
		return {
			isShow: false, //是否显示
			title: '在线教育APP视频教程',
			shareText: '梦学谷-陪你学习，伴你梦想',
			href: 'https://www.mengxuegu.com', // $util.routePath() 获取当前页面的url（html5）
			image: 'https://gd4.alicdn.com/imgextra/i4/3603079088/O1CN01dczOSM2H0LvTowhkl_!!3603079088.png',
			shareType: 0, // 分享类型：0 图文，1 文字，2图片
			providerList: [] // 提供商
		};
	},

	created: function() {
		// 不能写onload，因为 当前是组件，没有页面钩子
		uni.getProvider({
			service: 'share',
			success: e => {
				// console.log('success', e);
				let data = []; // 提供商
				for (let i = 0; i < e.provider.length; i++) {
					switch (e.provider[i]) {
						case 'weixin':
							data.push({
								name: '微信好友',
								id: 'weixin',
								sort: 0,
								icon: '/static/share/weixin.png'
							});
							data.push({
								name: '微信朋友圈',
								id: 'weixin',
								type: 'WXSenceTimeline',
								sort: 1,
								icon: '/static/share/pengyouquan.png'
							});
							break;
						case 'sinaweibo':
							data.push({
								name: '新浪微博',
								id: 'sinaweibo',
								sort: 2,
								icon: '/static/share/weibo.png'
							});
							break;
						case 'qq':
							data.push({
								name: 'QQ好友',
								id: 'qq',
								sort: 3,
								icon: '/static/share/qq.png'
							});
							break;
						default:
							break;
					}
				}

				data.push({
					name: '复制链接',
					id: 'copy',
					sort: 4,
					icon: '/static/share/link.png'
				});
				this.providerList = data.sort((x, y) => {
					return x.sort - y.sort;
				});

				// console.log('providerList', this.providerList)
			},
			fail: e => {
				console.log('获取分享通道失败', e);
				uni.showModal({
					content: '获取分享通道失败',
					showCancel: false
				});
			}
		});
	},

	methods: {
		// 显示隐藏分享组件
		showHandler() {
			this.isShow = !this.isShow;
		},

		async share(e) {
			console.log('分享通道:' + e.id + '； 分享类型:' + this.shareType);

			// 复制链接
			if (e.id === 'copy') {
				uni.setClipboardData({
					data: this.href,
					success: () => {
						// 隐藏默认提示
						uni.hideToast();
						this.$util.msg('已复制到剪贴板');
					}
				});
				this.showHandler();
				return; // 结束
			}

			// 加载中
			uni.showLoading();

			if (!this.shareText && (this.shareType === 1 || this.shareType === 0)) {
				uni.showModal({
					content: '分享内容不能为空',
					showCancel: false
				});
				return;
			}

			if (!this.image && (this.shareType === 2 || this.shareType === 0)) {
				uni.showModal({
					content: '分享图片不能为空',
					showCancel: false
				});
				return;
			}

			let shareOPtions = {
				provider: e.id,
				scene: e.type && e.type === 'WXSenceTimeline' ? 'WXSenceTimeline' : 'WXSceneSession', //WXSceneSession”分享到聊天界面，“WXSenceTimeline”分享到朋友圈，“WXSceneFavorite”分享到微信收藏
				type: this.shareType,
				success: e => {
					console.log('success', e);
					uni.showModal({
						content: '已分享',
						showCancel: false
					});
				},
				fail: e => {
					console.log('fail', e);
					uni.showModal({
						content: e.errMsg,
						showCancel: false
					});
				},
				complete: function() {
					console.log('分享操作结束!');
				}
			};

			switch (this.shareType) {
				case 0:
					shareOPtions.summary = this.shareText;
					shareOPtions.imageUrl = this.image;
					shareOPtions.title = this.title;
					shareOPtions.href = this.href;
					break;
				case 1:
					shareOPtions.summary = this.shareText;
					break;
				case 2:
					shareOPtions.imageUrl = this.image;
					break;
				case 5:
					shareOPtions.imageUrl = this.image ? this.image : 'https://img-cdn-qiniu.dcloud.net.cn/uniapp/app/share-logo@3.png';
					shareOPtions.title = '欢迎体验uniapp';
					shareOPtions.miniProgram = {
						id: 'gh_33446d7f7a26',
						path: '/pages/tabBar/component/component',
						webUrl: 'https://uniapp.dcloud.io',
						type: 0
					};
					break;
				default:
					break;
			}

			if (shareOPtions.type === 0 && plus.os.name === 'iOS') {
				//如果是图文分享，且是ios平台，则压缩图片
				shareOPtions.imageUrl = await this.compress();
			}
			if (shareOPtions.type === 1 && shareOPtions.provider === 'qq') {
				//如果是分享文字到qq，则必须加上href和title
				shareOPtions.href = this.href;
				shareOPtions.title = this.title;
			}

			// 隐藏加载中
			uni.hideLoading();
			uni.share(shareOPtions);
		},

		compress() {
			//压缩图片 图文分享要求分享图片大小不能超过20Kb
			console.log('开始压缩');
			let img = this.image;
			return new Promise(async res => {
				// var localPath = plus.io.convertAbsoluteFileSystem(img.replace('file://', ''));
				// console.log('after' + localPath);

				if (img.startsWith('http')) {
					//下载网络图片到本地，返回本地存储的临时文件
					img = await this.downFile(img);
				}

				// 压缩size
				plus.io.resolveLocalFileSystemURL(
					img,
					entry => {
						// plus.io.resolveLocalFileSystemURL(localPath, (entry) => {
						entry.file(file => {
							// 可通过entry对象操作图片
							console.log('getFile:' + JSON.stringify(file));
							if (file.size > 20480) {
								// 压缩后size 大于20Kb
								plus.zip.compressImage(
									{
										src: img,
										dst: img.replace('.jpg', '2222.jpg').replace('.JPG', '2222.JPG'),
										width: '10%',
										height: '10%',
										quality: 1,
										overwrite: true
									},
									event => {
										// console.log('success zip****' + event.size);
										let newImg = img.replace('.jpg', '2222.jpg').replace('.JPG', '2222.JPG');
										res(newImg);
									},
									function(error) {
										uni.showModal({
											content: '分享图片太大,需要请重新选择图片!',
											showCancel: false
										});
									}
								);
							}
						});
					},
					e => {
						console.log('Resolve file URL failed: ' + e.message);
						uni.showModal({
							content: '分享图片太大,需要请重新选择图片!',
							showCancel: false
						});
					}
				);
			});
		},

		// 下载图片文件
		downFile(url) {
			console.log('url', url);
			return new Promise(resolve => {
				uni.downloadFile({
					url, // url:url
					success: res => {
						// console.log('下载完成', res.tempFilePath)
						resolve(res.tempFilePath);
					}
				});
			});
		}
	}
};
</script>

<style lang="scss">
.mask {
	z-index: 99;
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background-color: rgba(0, 0, 0, 0.6);
}

.share-body {
	z-index: 100;
	position: fixed;
	left: 0;
	right: 0;
	bottom: 0;
	.share-scroll {
		background-color: #f7f7f7;
		width: 100%;
		height: 200rpx;
		display: flex;
		white-space: nowrap;
		padding-top: 45rpx;
		.share-item {
			display: inline-flex;
			flex-direction: column;
			justify-content: center;
			align-items: center;
			width: 25%;
			image {
				width: 60rpx;
				height: 60rpx;
			}
			view {
				color: grey;
				font-size: 25rpx;
				padding-top: 10rpx;
			}
		}
	}
	.share-cancel {
		background-color: #fff;
		text-align: center;
		width: 100%;
		padding: 25rpx 0;
	}
}
</style>
